I forgot giving opinion of this, but this is a terrific idea. All phone games have this and I think sploder also should. In fact, even Roblox lacks this. They do have achievements, but very few (Ex. Builders club welcome badge, or Hitting 1000 plays badge), though each game in roblox has badges.

I wish I gave more feedback on this but I considered making something like this a couple years ago but fell back for fear people wouldn't like it or use it. But it really makes me smile seeing someone else go take on this idea. I think it could use some work but only by way of add-ons like hypothetical prizes and stuff (maybe something similar to Xbox gamerscore or Sploder awards if nothing else).

Honestly I wish this were a genuine add-on sooner. Little promotes activity more than making the Sploder experience a fun portfolio of small achievements and mental awards. It's very motivating. I'm behind on my own work but honestly I'd think about designing some badges for them or something like that. This has great potential.

Also another note leaving constructive criticism without the constructive part is basically an attack.